Highly Conductive Molecular Junctions Based on Direct Binding of Benzene to Platinum Electrodes

2008/03/04 by Manabu Kiguchi, M. Kiguchi, O. Tal +10 · 1 citation
Chemistry · Engineering · Physics and Astronomy · #Electrochemical Analysis and Applications #Molecular Junctions and Nanostructures #Quantum and electron transport phenomena #cond-mat.mes-hall #cond-mat.other

paper · pdf · doi:10.1103/physrevlett.101.046801

published as Phys. Rev. Lett. 101, 046801 (2008); Selected for a Viewpoint in Physics 1, 5 (2008) · 4 pages, 4 figures

arxiv created 2008/03/04 · openalex publication_date 2008/07/21 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

Highly conductive molecular junctions were formed by direct binding of benzene molecules between two Pt electrodes. Measurements of conductance, isotopic shift in inelastic spectroscopy, and shot noise compared with calculations provide indications for a stable molecular junction where the benzene molecule is preserved intact and bonded to the Pt leads via carbon atoms. The junction has a conductance comparable to that for metallic atomic junctions (around 0.1-1G0), where the conductance and the number of transmission channels are controlled by the molecule's orientation at different interelectrode distances.

Citations

• Electronic structure calculations on workstation computers: The program system turbomole
• Density-functional approximation for the correlation energy of the inhomogeneous electron gas
• Modeling inelastic phonon scattering in atomic- and molecular-wire junctions
• Electron-Vibration Interaction in Single-Molecule Junctions: From Contact to Tunneling Regimes
• Fully optimized contracted Gaussian basis sets for atoms Li to Kr
• Shot noise in mesoscopic conductors

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